CN110036676B - Terminal communication method and user equipment - Google Patents
Terminal communication method and user equipment Download PDFInfo
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- CN110036676B CN110036676B CN201780075476.3A CN201780075476A CN110036676B CN 110036676 B CN110036676 B CN 110036676B CN 201780075476 A CN201780075476 A CN 201780075476A CN 110036676 B CN110036676 B CN 110036676B
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- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
Abstract
A terminal communication method and user equipment are used for solving the problem that in the prior art, remote user equipment needs to detect all SCIs in PSCCH resources to determine the SCIs required by the remote user equipment, so that the power consumption of the remote user equipment is overlarge. The method comprises the following steps: the first user equipment determines at least one second user equipment associated or connected with the first user equipment; the first user equipment groups the at least one second user equipment according to a set grouping rule; the first user equipment divides the transmission resources of the first user equipment according to the grouping, and determines the transmission resource configuration information of the first user equipment; and the first user equipment sends the transmission resource configuration information of the first user equipment.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method for terminal communication and a user equipment.
Background
Device-to-device (D2D) technology defined in release 12 (R12) and release 13 (R13) of the third generation partnership project (3 GPP) is a technology for direct communication between devices, and messages and Data (Data) may be directly transmitted between the two devices without passing through a base station. Specifically, a Physical bypass broadcast channel (PSBCH) is used to transmit a broadcast message, a Physical bypass discovery channel (PSDCH) is used to transmit a discovery message (discovery message), and a PSCCH (Physical bypass control channel) is used to transmit bypass control information (SCI), which may also be referred to as scheduling indication (SA) or Physical bypass shared channel (psch) to transmit data.
Further, in a 3GPP Radio Access Network (RAN) #71 conference, through a project of continuous evolution on D2D, FeD2D of D2D, messages and data may be exchanged between an evolved NodeB (E-UTRAN, eNB) and a Remote UE (Remote UE) via a Relay user equipment (Relay user equipment, Relay UE). Specifically, a Bidirectional Relay mode (Bidirectional Relay mode) shown in fig. 1 is used for data transmission, Relay UE may forward uplink and downlink signaling and data between eNB and Remote UE, and uplink signaling and data from Remote UE to eNB may also be forwarded to eNB through uplink by the Relay UE. When the remote ue is to receive SCI and Data sent by the relay ue, it first needs to detect SCI from the relay ue, and without prior knowledge, the remote ue may need to detect all SCIs in PSCCH resources to determine its required SCI.
In summary, how to reduce power consumption when the remote ue detects the SCI required by itself in the PSCCH resource is a problem that needs to be solved at present.
Disclosure of Invention
The embodiment of the application provides a terminal communication method and user equipment, which are used for solving the problem that in the prior art, under the condition of no prior knowledge, remote user equipment needs to detect all SCIs in PSCCH resources to determine SCIs required by the remote user equipment, and the power consumption of the remote user equipment is overlarge due to the adoption of the detection mode.
In a first aspect, the present application provides a method for terminal communication, where the method includes: the first user equipment determines at least one second user equipment associated or connected with the first user equipment; the first user equipment groups the at least one second user equipment according to a set grouping rule; the first user equipment divides the transmission resources of the first user equipment according to the grouping, and determines the transmission resource configuration information of the first user equipment; and the first user equipment sends the transmission resource configuration information of the first user equipment.
By the method, the first user equipment groups the second user equipment associated or connected with the first user equipment according to the set rule, the transmission resources of the first user equipment are divided according to the groups, and the grouped second user equipment only needs to detect SCI in the transmission resources corresponding to the second user equipment and does not need to detect SCI in all the transmission resources, so that the power consumption of the second user equipment is reduced, the detection time is shortened, and the detection efficiency is improved.
In one possible design, the dividing, by the first user equipment, the transmission resource of the first user equipment according to the packet, and determining the transmission resource configuration information of the first user equipment include: the first user equipment divides the transmission resources of the first user equipment into at least one group of transmission resource subsets, wherein the at least one group of transmission resource subsets is less than all available transmission resources of the first user equipment; the first user equipment configures the at least one group of transmission resource subsets for the packet, and determines a mapping relation between the packet and the at least one group of transmission resource subsets as transmission resource configuration information of the first user equipment.
According to the method, the first user equipment divides the transmission resources of the first user equipment into transmission resource subsets according to groups, the transmission resource subsets and the groups have a mapping relation, and the second user equipment in the groups detects SCI in the transmission resource subsets corresponding to the groups where the second user equipment is located, so that the power consumption of the second user equipment is reduced.
In one possible design, after the first user equipment sends the transmission resource configuration information of the first user equipment, the method further includes: when the first user equipment schedules any one of the second user equipments, the first user equipment sends first information corresponding to any one of the second user equipments on at least one group of transmission resource subsets corresponding to a group in which the any one of the second user equipments is located, wherein the first information includes control information.
In one possible design, the sending, by the first user equipment, transmission resource configuration information of the first user equipment includes: the first user equipment sends the transmission resource configuration information of the first user equipment through a bypass link master information block message, a discovery message or a radio resource control message.
In one possible design, in the process of determining, by the first user equipment, at least one second user equipment associated with or connected to the first user equipment, the method further includes: the first user equipment distributes identification information to the at least one second user equipment; the first user equipment groups the at least one second user equipment according to a set grouping rule, and the method comprises the following steps: and the first user equipment groups the at least one second user equipment according to the identification information and a grouping rule set according to the identification information.
In a second aspect, the present application provides a method for terminal communication, including: the first user equipment determines at least one second user equipment associated or connected with the first user equipment; the first user equipment configures transmission resources of the first user equipment for the at least one second user equipment, and determines transmission resource configuration information of the first user equipment; and the first user equipment sends the transmission resource configuration information of the first user equipment.
By the method, the first user equipment and the second user equipment associated or connected with the first user equipment configure the transmission resources, and the second user equipment only needs to detect the SCI in the transmission resources corresponding to the second user equipment and does not need to detect the SCI in all the transmission resources, so that the power consumption of the second user equipment is reduced, the detection time is shortened, and the detection efficiency is improved.
In one possible design, the configuring, by the first user equipment, transmission resources of the first user equipment for the at least one second user equipment, and the determining transmission resource configuration information of the first user equipment include: the first user equipment configures one or more transmission resources at set positions for each second user equipment, and determines the mapping relation between the transmission resources at the set positions and the second user equipment as the transmission resource configuration information of the first user equipment, wherein the transmission resources at the set positions are less than all available transmission resources of the first user equipment.
By the method, the second user equipment only needs to detect the SCI in the corresponding transmission resource and does not need to detect the SCI in all the transmission resources, so that the power consumption of the second user equipment is reduced, the detection time is shortened, and the detection efficiency is improved.
In one possible design, after the first user equipment sends the transmission resource configuration information of the first user equipment, the method further includes: when the first user equipment schedules any second user equipment, the first user equipment sends first information corresponding to any second user equipment on transmission resources of a set position corresponding to any second user equipment.
In one possible design, in the process of determining, by the first user equipment, at least one second user equipment associated with or connected to the first user equipment, the method further includes: and the first user equipment distributes identification information to the at least one second user equipment.
In a third aspect, the present application provides a method for terminal communication, where the method includes: the second user equipment acquires the transmission resource configuration information of the first user equipment; the second user equipment determines at least one group of transmission resource subsets according to the transmission resource configuration information, wherein the transmission resources are used for transmitting first information sent by the first user equipment, and the at least one group of transmission resource subsets is smaller than all available transmission resources of the first user equipment; and the second user equipment detects first information corresponding to the second user equipment in the at least one group of transmission resource subsets.
In one possible design, before the second ue determines at least one set of transmission resource subsets according to the transmission resource configuration information, the method further includes: and the second user equipment determines the group in which the second user equipment is positioned.
In one possible design, the determining, by the second user equipment, at least one set of transmission resource subsets according to the transmission resource configuration information includes: and the second user equipment determines at least one group of transmission resource subsets according to the grouping, wherein the grouping and the at least one group of transmission resource subsets have a mapping relation.
In one possible embodiment, the grouping is performed by the first user equipment according to a set grouping rule.
In one possible design, the grouping rule includes a grouping rule determined according to at least one of identification information of the second user equipment, a service type of the second user equipment, or a propagation path loss between the second user equipment and the first user equipment.
In one possible design, the mapping relationship between the packet and the at least one subset of transmission resources is determined by the first user equipment or determined according to a pre-configured rule.
In one possible design, the at least one subset of transmission resources includes one or more transmission resources of a set location.
In a possible design, the mapping relationship between the second user equipment and the one or more transmission resources of the set location is determined by the first user equipment, or determined according to a pre-configured rule.
In a fourth aspect, the present application provides a user equipment, comprising:
the processing unit is used for determining at least one second user equipment which is associated or connected with the first user equipment to which the processing unit belongs; the processing unit is further configured to group the at least one second user equipment according to a set grouping rule; the processing unit is further configured to divide the transmission resource of the first user equipment according to the packet, and determine transmission resource configuration information of the first user equipment; a transceiving unit, configured to send transmission resource configuration information of the first user equipment.
By the method, the first user equipment groups the second user equipment associated or connected with the first user equipment according to the set rule, the transmission resources of the first user equipment are divided according to the groups, and the grouped second user equipment only needs to detect SCI in the transmission resources corresponding to the second user equipment and does not need to detect SCI in all the transmission resources, so that the power consumption of the second user equipment is reduced, the detection time is shortened, and the detection efficiency is improved.
In one possible design, the processing unit is specifically configured to: dividing transmission resources of the first user equipment into at least one group of transmission resource subsets, wherein the at least one group of transmission resource subsets is less than all available transmission resources of the first user equipment; configuring the at least one set of transmission resource subsets for the packet and determining a mapping of the packet to the at least one set of transmission resource subsets as transmission resource configuration information for the first user equipment.
In one possible design, the transceiver unit is specifically configured to: when the first user equipment schedules any one of the second user equipments, the first user equipment sends first information corresponding to any one of the second user equipments on at least one group of transmission resource subsets corresponding to a group in which the any one of the second user equipments is located, wherein the first information includes control information.
In one possible design, the transceiver unit is specifically configured to: the first user equipment sends the transmission resource configuration information of the first user equipment through a bypass link master information block message, a discovery message or a radio resource control message.
In one possible design, the processing unit is further specifically configured to: allocating identification information to the at least one second user equipment; and grouping the at least one second user equipment according to the identification information and a grouping rule set according to the identification information.
In a fifth aspect, the present application provides a user equipment, comprising: the processing unit is used for determining at least one second user equipment which is associated or connected with the first user equipment to which the processing unit belongs; the processing unit is further configured to configure a transmission resource of the first user equipment for the at least one second user equipment, and determine transmission resource configuration information of the first user equipment; a transceiving unit, configured to send transmission resource configuration information of the first user equipment.
In one possible design, the processing unit is specifically configured to: configuring one or more transmission resources at set positions for each second user equipment, and determining the mapping relationship between the transmission resources at the set positions and the second user equipment as the transmission resource configuration information of the first user equipment, wherein the transmission resources at the set positions are less than all available transmission resources of the first user equipment.
In one possible design, the transceiver unit is further configured to: when the first user equipment schedules any second user equipment, the first user equipment sends first information corresponding to any second user equipment on transmission resources of a set position corresponding to any second user equipment.
In one possible design, the processing unit is further configured to assign identification information to the at least one second user equipment.
In a sixth aspect, the present application provides a user equipment, comprising: a transceiver unit, configured to acquire transmission resource configuration information of a first user equipment; a processing unit, configured to determine at least one group of transmission resource subsets according to the transmission resource configuration information, where the transmission resources are used for transmitting first information sent by the first user equipment, and the at least one group of transmission resource subsets is smaller than all available transmission resources of the first user equipment; the processing unit is further configured to detect, in the at least one group of transmission resource subsets, first information corresponding to the second user equipment.
In one possible design, the processing unit is further configured to determine a packet in which the processing unit is located.
In a possible design, the processing unit is specifically configured to determine, by the second user equipment, at least one group of transmission resource subsets according to the packet, where the packet and the at least one group of transmission resource subsets have a mapping relationship.
In one possible embodiment, the grouping is performed by the first user equipment according to a set grouping rule.
In one possible design, the grouping rule includes a grouping rule determined according to at least one of identification information of the second user equipment, a service type of the second user equipment, or a propagation path loss between the second user equipment and the first user equipment.
In one possible design, the mapping relationship between the packet and the at least one subset of transmission resources is determined by the first user equipment or determined according to a pre-configured rule.
In one possible design, the at least one subset of transmission resources includes one or more transmission resources of a set location.
In a possible design, the mapping relationship between the second user equipment and the one or more transmission resources of the set location is determined by the first user equipment, or determined according to a pre-configured rule.
In a seventh aspect, an embodiment of the present application further provides a user equipment, including a communication interface, a processor, and a memory, where: the memory is used for storing a software program; the processor is configured to call and execute a software program stored in the memory, and transmit and receive data through the communication interface to implement the first aspect or any design of the first aspect, or the second aspect or any design of the second aspect, or the third aspect or any design of the third aspect. The user equipment may be a mobile terminal, a computer, etc.
In an eighth aspect, an embodiment of the present application further provides a chip, where the chip is connected to a memory, and is configured to read and execute a software program stored in the memory, so as to implement the method provided by the first aspect or any design of the first aspect, or any design of the second aspect, or any design of the third aspect.
In a ninth aspect, this embodiment further provides a computer storage medium, where a software program is stored, and when the software program is read and executed by one or more processors, the software program may implement the method provided by the first aspect or any one of the designs of the first aspect, or the second aspect or any one of the designs of the second aspect, or the third aspect or any one of the designs of the third aspect.
Drawings
Fig. 1 is a schematic diagram of a bidirectional relay mode according to an embodiment of the present application;
fig. 2 is a schematic diagram of a PSCCH and PSCCH resource pool configuration provided in an embodiment of the present application;
fig. 3 is a schematic diagram of another PSCCH and PSCCH resource pool configuration provided in an embodiment of the present application;
fig. 4 is a flowchart of a method for terminal communication according to an embodiment of the present disclosure;
fig. 5 is a flowchart of another method for terminal communication according to an embodiment of the present application;
fig. 6 is a flowchart of a method for communicating with a terminal according to another embodiment of the present disclosure;
fig. 7 is a schematic diagram of transmission resource allocation according to an embodiment of the present application;
fig. 8 is a schematic diagram of another transmission resource allocation provided in the embodiment of the present application;
fig. 9 is a schematic diagram of another transmission resource allocation provided in an embodiment of the present application;
fig. 10 is a schematic diagram of another transmission resource allocation provided in the embodiment of the present application;
fig. 11 is a schematic diagram of a user equipment according to an embodiment of the present application;
fig. 12 is a schematic diagram of another ue provided in the embodiment of the present application;
fig. 13 is a schematic diagram of still another user equipment according to an embodiment of the present application;
fig. 14 is a hardware structure diagram of a user equipment according to an embodiment of the present application.
Detailed Description
Embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
The embodiment of the application provides a terminal communication method and user equipment, which are used for solving the problem that in the prior art, under the condition of no prior knowledge, remote user equipment needs to detect all SCIs in PSCCH resources to determine SCIs required by the remote user equipment, and the power consumption of the remote user equipment is overlarge due to the adoption of the detection mode. The method and the device are based on the same inventive concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.
A user equipment, which may be referred to as a terminal equipment, a mobile station, a terminal, or a mobile terminal, may communicate with one or more Network devices via a Radio Access Network (RAN). The user equipment may be a mobile phone (or so-called "cellular" phone) or a computer with a mobile terminal, etc., e.g. the user equipment may also be a portable, pocket, hand-held, computer-included or car-mounted mobile device. The user equipment can also be internet of things equipment, such as a meter terminal, wearable equipment, logistics tracking, elevator pictures or satellite equipment and other internet of things equipment. The user equipment may also be a vehicle network equipment, such as a vehicle mounted terminal, Road Side Unit (RSU). They may exchange voice and/or data with the radio access network and, when the sidelink feature is supported, they may also communicate directly with each other. In the present invention, both the relay user equipment and the remote user equipment may be one of the user equipments.
It is to be understood that the terms "first," "second," and the like in the description of the present application are used for descriptive purposes only and not for purposes of indicating or implying relative importance, nor for purposes of indicating or implying order.
In the prior art, resource pools of PSCCH and PSCCH of relay user equipment may be divided by a time division multiplexing method or a frequency division multiplexing method, and specifically, as described below, in a D2D system of R12/R13, the resource pools of PSCCH and PSCCH are divided by a time division multiplexing method and are configured periodically, as shown in fig. 2, an SCI period (period) in fig. 2, which may also be referred to as SA period, indicates a resource division period on a bypass (Sidelink) link, and includes one PSCCH resource pool and one PSCCH resource pool, SCI transmitted by a D2D device is transmitted on PSCCH, Data (Data) transmitted by a D2D device is transmitted on PSCCH resource pool, and any D2D device may randomly select resources for transmitting SCI and Data. The user equipment on the receiving side needs to try to demodulate all SCIs in the PSCCH resource pool to demodulate the Data transmitted by the D2D device of interest. In the continuing evolution (e.g., D2D, FeD2D) of D2D, a remote ue associated with a certain relay ue only needs to detect SCI and Data sent by one relay ue, and if the detection method is adopted in the FeD2D, a remote terminal may need to detect and try to demodulate all SCIs on a PSCCH channel, which results in large power consumption, at this time, the remote ue is a receiver ue in the D2D user system, and the relay ue is a D2D ue in the D2D user system. In a second case, in an R14 Vehicle networking (V2X), a resource pool of a PSCCH and a PSCCH is divided by frequency division multiplexing, frequency resources are divided into sub-channels, each channel is continuous in a time domain, as shown in fig. 3, some fixed frequency positions in the resource pool are reserved for the PSCCH, a terminal sends SCI in the reserved PSCCH resources, and Data can occupy the PSCCH resources. The SCI and Data sent by the same relay user equipment are in the same subframe, and the remote user equipment only needs to demodulate the SCI and Data of one relay user equipment, but needs to continuously detect the PSCCH subchannel until the SCI of the required relay user equipment is detected, which also causes large power consumption.
In the embodiment of the application, the first user equipment groups the second user equipment associated or connected with the first user equipment according to a set rule, and divides the transmission resources of the first user equipment according to the group, and the grouped second user equipment only needs to detect SCI in the transmission resources corresponding to the second user equipment and does not need to detect SCI in all the transmission resources, so that the power consumption of the second user equipment is reduced, the detection time is shortened, and the detection efficiency is improved.
The following describes a scheme of terminal communication provided by the present application in detail with reference to the accompanying drawings.
Referring to fig. 4, a flowchart of a method for terminal communication is provided. The method comprises the following steps:
s401, the first user equipment determines at least one second user equipment associated or connected with the first user equipment.
Optionally, the first ue allocates identification information to the at least one second ue, specifically, the identification information may be an IDentity identification number (ID) number, for example, a global identification number, a layer 2ID, a Local identification (Local ID) of a cellular radio network temporary identifier (C-RNTI), and the like, which is not limited in the present invention.
S402, the first user equipment groups the at least one second user equipment according to a set grouping rule.
Specifically, the grouping rule includes a grouping rule determined according to at least one of identification information of the second user equipment, a service type of the second user equipment, or a measurement result related to a propagation channel environment between the second user equipment and the first user equipment. The measurement result related to the propagation channel environment includes one or more of measurement results of propagation path loss, Received Signal Strength (RSSI), Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), signal-to-noise ratio (snr), and the like.
The following three specific embodiments are exemplified, wherein the first user equipment is relay user equipment, and the second user equipment is remote user equipment:
example 1, grouping is performed according to the identification information of the second user equipment, and the identification information is an ID number. In a relay scenario from user equipment to a Network (UE-NW), the number of remote user equipments associated with the relay user equipment is small, and the change is small in a long time, the relay user equipment allocates a temporary ID to each remote user equipment associated therewith, and the identification information may be a Local ID, or may be a part of a C-RNTI, a layer 2 identification, or a MAC address, which is not limited in the embodiment of the present invention. Specifically, assuming that the relay user equipment is associated with 8 remote user equipments, the relay user equipment may allocate a temporary ID to each remote user equipment according to the associated sequence, and take a value from the set {0,1,2, …,7 }. After the remote user equipment obtains the temporary ID, the grouping may be configured according to predefined rules or by the relay terminal. For example, the remote user equipments with even temporary ID numbers may be divided into one Group, such as Group0 ═ {0,2,4,6}, and the remote user equipments with odd temporary ID numbers may be divided into another Group, such as Group 1 ═ {1,3,5,7 }. The present invention is not limited thereto.
Example 2, grouping is performed according to the service type of the remote user equipment. Specifically, for example, the service type of the remote user equipment with the temporary ID number {0,1,3,4,6} is a Voice over Internet Protocol (VoIP) service, and they are grouped into Group 0; the service type of the remote user equipment with the temporary ID number {2,5,7} is a File Transfer Protocol (FTP) service, and they are grouped into Group 1.
Example 3, grouping according to propagation channel environment related measurements between the remote user equipment and the relay user equipment. Wherein the propagation channel environment related measurement result comprises one or more of the measurement results of propagation path loss, RSSI, RSRP, RSRQ, signal-to-noise ratio, signal-to-interference-and-noise ratio and the like. Specifically, for example, a propagation path loss threshold value PL _ Thx is set, and the propagation path loss between the remote user equipment and the relay user equipment greater than PL _ Thx is divided into Group0, otherwise, the propagation path loss is divided into Group 1. In the embodiment of the present invention, the value of the threshold is not limited.
In the embodiment of the present invention, other grouping methods are not limited.
S403, the first user equipment divides the transmission resource of the first user equipment according to the grouping, and determines the transmission resource configuration information of the first user equipment.
Specifically, the first user equipment divides transmission resources of the first user equipment into at least one group of transmission resource subsets, where the at least one group of transmission resource subsets is smaller than all available transmission resources of the first user equipment; the first user equipment configures the at least one group of transmission resource subsets for the packet, and determines a mapping relation between the packet and the at least one group of transmission resource subsets as transmission resource configuration information of the first user equipment, wherein the transmission resource configuration information further includes a starting position of the transmission resource.
Optionally, the mapping relationship is configured or preconfigured for the relay user equipment, and the present invention does not limit the mapping relationship.
For example, the following steps are carried out: each packet corresponds to one or more subsets of transmission resources, for example, as shown in table 1 below, the SCI sent by the relay user equipment to the remote user equipment in different packets is sent on the corresponding subset of transmission resources, taking the example that each packet corresponds to one subset of transmission resources. The resource subsets may be associated to the groups with corresponding sequence numbers according to the sequence numbers of the resource subsets, for example, the resource subsets with odd sequence numbers are associated with the terminal groups with odd sequence numbers, and the resource subsets with even sequence numbers are associated with the terminal groups with even sequence numbers, which is not limited in the present invention.
TABLE 1
| Group number | SCITransmission resource pool |
| Group 0 | Sub-pool 0 |
| … | … |
| Group N-1 | Sub-pool N-1 |
S404, the first user equipment sends the transmission resource configuration information of the first user equipment.
Specifically, the first ue sends the transmission resource configuration information of the first ue through a message such as a bypass link master information block (MIB-SL) message, a discovery message, or a radio resource control message. The discovery message includes an advertisement message (announcement message) or a response message (response message), and the radio resource control message may be a unicast message or a broadcast message.
In the embodiment of the invention, the first user equipment divides the transmission resource of the first user equipment into the transmission resource subsets according to the grouping, the transmission resource subsets and the grouping have a mapping relation, and the second user equipment in the grouping detects the SCI in the transmission resource subsets corresponding to the grouping, thereby reducing the power consumption of the second user equipment.
In an optional implementation manner, when the first user equipment schedules any one of the second user equipments, the first user equipment sends first information corresponding to the any one of the second user equipments on at least one group of transmission resource subsets corresponding to a group in which the any one of the second user equipments is located, where the first information includes control information.
Specifically, the control message is an SCI, and the second ue detects and attempts to demodulate the SCI in the corresponding resource subset.
Referring to fig. 5, a flowchart of another method for terminal communication is provided. The method comprises the following steps:
s501, the first user equipment determines at least one second user equipment associated or connected with the first user equipment.
S502, the first ue configures the transmission resource of the first ue for the at least one second ue, and determines the transmission resource configuration information of the first ue.
Specifically, the first user equipment configures one or more transmission resources at set positions for each second user equipment, and determines a mapping relationship between the transmission resources at the set positions and the second user equipment as the transmission resource configuration information of the first user equipment, where the transmission resources at the set positions are smaller than all available transmission resources of the first user equipment.
For example, the following steps are carried out: taking the example that one remote user equipment configures transmission resources at a set position, a one-to-one mapping manner is adopted, that is, each remote user equipment has a transmission resource at a set position corresponding to the transmission resource. As shown in table 2, when the relay ue schedules any remote ue, the SCI is sent on the transmission resource at the set location, and the remote ue periodically detects the SCI on the transmission resource at the set location corresponding to the SCI.
TABLE 2
| Resource# | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| UE ID | UE0 | UE1 | UE2 | UE3 | UE4 | UE5 | UE6 | UE7 |
The mapping between the transmission resource and the remote user equipment may also adopt other mapping manners, for example, a plurality of remote user equipments correspond to a transmission resource at a set location, which is not limited in the embodiment of the present invention.
S503, the first user equipment sends the transmission resource configuration information of the first user equipment.
In an optional implementation manner, when the first user equipment schedules any one of the second user equipments, the first user equipment sends first information corresponding to the any one of the second user equipments on a transmission resource at a set location corresponding to the any one of the second user equipments.
Referring to fig. 6, a flowchart of a method for communicating with a terminal is provided. The method comprises the following steps:
s601, the second user equipment acquires the transmission resource configuration information of the first user equipment.
S602, the second user equipment determines at least one group of transmission resource subsets according to the transmission resource configuration information, where the transmission resources are used for transmitting the first information sent by the first user equipment, and the at least one group of transmission resource subsets is smaller than all available transmission resources of the first user equipment.
S603, the second ue detects first information corresponding to the second ue in the at least one group of transmission resource subsets.
In the embodiment of the invention, the PSCCH and PSSCH resource pools are configured in a time division multiplexing mode and a frequency division multiplexing mode, and the remote user equipment grouping and the transmission resource configuration information in the example 1 are taken as the basis:
when the PSCCH and PSCCH resource pools are time-division multiplexed, the transmission resource allocation method is as follows, where the relay UE sends SCIs associated with a Group #0 of the remote UE in the transmission resource subset #0, sends SCIs associated with a Group #1 of the remote UE in the transmission resource subset #1, and both the UE6 in the Group #0 and the UE7 in the Group #1 are not scheduled by the relay UE, so that the relay UE does not send SCIs of the two remote terminals in the corresponding transmission resource subsets, as shown in fig. 7 specifically;
in a second mode, when the PSCCH and PSCCH subchannels are frequency division multiplexed, the transmission resource configuration method is as follows, where the relay UE sends the SCI associated with the remote UE Group #0 in the transmission resource subset #0, sends the SCI associated with the remote UE Group #1 in the transmission resource subset #1, and both the UE6 in the Group #0 and the UE7 in the Group #1 are not scheduled by the relay UE, so that the relay UE does not send the SCIs of the two remote UEs in the corresponding transmission resource subsets, as shown in fig. 8.
In the embodiment of the invention, the PSCCH and PSSCH resource pools are configured in a time division multiplexing mode and a frequency division multiplexing mode, and the configuration information of the remote user equipment and the transmission resources at the set position in the table 2 is taken as the basis:
in case 1, PSCCH and PSCCH are time division multiplexed, the allocation of transmission resources in PSCCH is shown in fig. 9;
in case 2, PSCCH and PSCCH frequency division multiplexing, the allocation of transmission resources in PSCCH is as shown in fig. 10.
In both cases, it is assumed that there are 8 remote terminals, where the UE3 and the UE7 are not scheduled by the relay terminal, so there is no SCI transmission on the SCI transmission resources corresponding to these two UEs, but the SCI transmission resources of fig. 10 may be occupied by Data to other remote user equipments.
Based on the same inventive concept as the method embodiment, the present application further provides a schematic diagram of a user equipment, as shown in fig. 11, the user equipment includes:
the processing unit 1101 is configured to determine at least one second user equipment associated with or connected to the first user equipment to which the processing unit belongs.
The processing unit 1101 is further configured to group the at least one second user equipment according to a set grouping rule; the processing unit is further configured to divide the transmission resource of the first user equipment according to the packet, and determine transmission resource configuration information of the first user equipment.
A transceiving unit 1102, configured to send transmission resource configuration information of the first user equipment.
In the embodiment of the invention, the first user equipment groups the second user equipment associated or connected with the first user equipment according to the set rule, and divides the transmission resource of the first user equipment according to the group, and the grouped second user equipment only needs to detect SCI in the transmission resource corresponding to the second user equipment and does not need to detect SCI in all the transmission resources, so that the power consumption of the second user equipment is reduced, the detection time is shortened, and the detection efficiency is improved.
Optionally, the processing unit is specifically configured to: dividing transmission resources of the first user equipment into at least one group of transmission resource subsets, wherein the at least one group of transmission resource subsets is less than all available transmission resources of the first user equipment; configuring the at least one set of transmission resource subsets for the packet and determining a mapping of the packet to the at least one set of transmission resource subsets as transmission resource configuration information for the first user equipment.
Optionally, the transceiver unit is specifically configured to: when the first user equipment schedules any one of the second user equipments, the first user equipment sends first information corresponding to any one of the second user equipments on at least one group of transmission resource subsets corresponding to a group in which the any one of the second user equipments is located, wherein the first information includes control information.
In a possible implementation manner, the transceiver unit is specifically configured to: the first user equipment sends the transmission resource configuration information of the first user equipment through a bypass link master information block message, a discovery message or a radio resource control message.
In a possible implementation manner, the processing unit is specifically further configured to: allocating identification information to the at least one second user equipment; and grouping the at least one second user equipment according to the identification information and a grouping rule set according to the identification information.
Based on the same inventive concept as the method embodiment, the present application further provides a schematic diagram of a user equipment, as shown in fig. 12, the user equipment includes:
a processing unit 1201, configured to determine at least one second user equipment associated with or connected to a first user equipment to which the processing unit belongs.
The processing unit 1201 is further configured to configure a transmission resource of the first user equipment for the at least one second user equipment, and determine transmission resource configuration information of the first user equipment.
A transceiving unit 1202, configured to send transmission resource configuration information of the first user equipment.
Optionally, the processing unit is specifically configured to: configuring one or more transmission resources at set positions for each second user equipment, and determining the mapping relationship between the transmission resources at the set positions and the second user equipment as the transmission resource configuration information of the first user equipment, wherein the transmission resources at the set positions are less than all available transmission resources of the first user equipment.
Optionally, the transceiver unit is further configured to: when the first user equipment schedules any second user equipment, the first user equipment sends first information corresponding to any second user equipment on transmission resources of a set position corresponding to any second user equipment.
Optionally, the processing unit is further configured to allocate identification information to the at least one second user equipment.
Based on the same inventive concept as the method embodiment, the present application further provides a schematic diagram of a user equipment, as shown in fig. 13, the user equipment includes:
the transceiving unit 1301 is configured to obtain transmission resource configuration information of the first user equipment.
A processing unit 1302, configured to determine at least one group of transmission resource subsets according to the transmission resource configuration information, where the transmission resources are used for transmitting the first information sent by the first user equipment, and the at least one group of transmission resource subsets is smaller than all available transmission resources of the first user equipment.
The processing unit 1302 is further configured to detect first information corresponding to the second user equipment in the at least one group of transmission resource subsets.
Optionally, the processing unit is further configured to determine a packet in which the processing unit is located.
Optionally, the processing unit is specifically configured to determine, by the second user equipment, at least one group of transmission resource subsets according to the packet, where the packet and the at least one group of transmission resource subsets have a mapping relationship.
Optionally, the grouping is divided by the first user equipment according to a set grouping rule.
Optionally, the grouping rule includes a grouping rule determined according to at least one of identification information of the second user equipment, a service type of the second user equipment, or a propagation path loss between the second user equipment and the first user equipment.
In a possible implementation, the mapping relationship between the packet and the at least one set of transmission resource subsets is determined by the first user equipment, or determined according to a pre-configured rule.
In a possible implementation manner, the at least one group of transmission resource subsets includes one or more transmission resources with set positions.
In a possible implementation manner, the mapping relationship between the second user equipment and the transmission resources of the one or more set locations is determined by the first user equipment, or is determined according to a preconfigured rule.
The division of the modules in the embodiments of the present application is schematic, and only one logical function division is provided, and in actual implementation, there may be another division manner, and in addition, each functional module in each embodiment of the present application may be integrated in one processor, may also exist alone physically, or may also be integrated in one module by two or more modules. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
When the integrated module may be implemented in the form of hardware, as shown in fig. 14, the user equipment may include a processor 1401, and the hardware of the entity corresponding to the processing unit 1101, 1201, or 1302 may be the processor 1401. The terminal may further include a transceiver 1404, and the hardware of the entity corresponding to the transceiving unit 1102, 1202 or 1301 may be the transceiver 1404. The processor 1401 may be a Central Processing Unit (CPU), a digital processing module, or the like. The terminal device further includes: a memory 1402 for storing programs executed by the processor 1401. The memory 1402 may be a nonvolatile memory such as a hard disk (HDD) or a solid-state drive (SSD), and may also be a volatile memory such as a random-access memory (RAM). Memory 1402 is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such.
The processor 1401 is configured to execute the program code stored in the memory 1402, specifically invoke the program instruction stored in the memory 1402, and detect a radio link failure event through the processor 1401; a transceiver 1404 is adopted to send a first notification message to a network device, where the first notification message includes a set field, and when a value of the set field is a set value, the set field is used to instruct the network device to release a mobility management link established with the ue last time.
The embodiment of the present application does not limit the specific connection medium between the processor 1401 and the memory 1402. In the embodiment of the present application, the processor 1401 and the memory 1402 are connected by a bus 1403 in fig. 14, the bus is represented by a thick line in fig. 14, and the connection manner between other components is merely illustrative and is not limited thereto. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 14, but this is not intended to represent only one bus or type of bus.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the spirit and scope of the embodiments of the present application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to encompass such modifications and variations.
Claims (10)
1. A method for communicating with a terminal, the method comprising:
the first user equipment determines at least one second user equipment associated or connected with the first user equipment;
the first user equipment groups the at least one second user equipment according to a set grouping rule;
the first user equipment divides the transmission resources of the first user equipment according to the grouping, and determines the transmission resource configuration information of the first user equipment;
the first user equipment sends the transmission resource configuration information of the first user equipment;
wherein the grouping rule includes a grouping rule determined according to at least one of identification information of the second user equipment, a service type of the second user equipment, or a propagation path loss between the second user equipment and the first user equipment;
wherein the dividing, by the first user equipment, the transmission resource of the first user equipment according to the packet, and determining the transmission resource configuration information of the first user equipment includes:
the first user equipment divides the transmission resources of the first user equipment into at least one group of transmission resource subsets, wherein the at least one group of transmission resource subsets is less than all available transmission resources of the first user equipment;
the first user equipment configures the at least one group of transmission resource subsets for the packet, and determines the mapping relation between the packet and the at least one group of transmission resource subsets as the transmission resource configuration information of the first user equipment;
after the first user equipment sends the transmission resource configuration information of the first user equipment, the method further includes:
when the first user equipment schedules any one of the second user equipments, the first user equipment sends first information corresponding to any one of the second user equipments on at least one group of transmission resource subsets corresponding to a group in which the any one of the second user equipments is located, wherein the first information includes control information.
2. The method of claim 1, wherein the first user equipment sending transmission resource configuration information of the first user equipment comprises:
the first user equipment sends the transmission resource configuration information of the first user equipment through a bypass link master information block message, a discovery message or a radio resource control message.
3. The method of claim 1, wherein the first user device is in the process of determining at least one second user device associated or connected to itself, the method further comprising:
the first user equipment distributes identification information to the at least one second user equipment;
the first user equipment groups the at least one second user equipment according to a set grouping rule, and the method comprises the following steps:
and the first user equipment groups the at least one second user equipment according to the identification information and a grouping rule set according to the identification information.
4. A method for communicating with a terminal, the method comprising:
the second user equipment acquires the transmission resource configuration information of the first user equipment;
the second user equipment determines at least one group of transmission resource subsets according to the transmission resource configuration information, wherein the transmission resources are used for transmitting first information sent by the first user equipment, and the at least one group of transmission resource subsets is smaller than all available transmission resources of the first user equipment;
the second user equipment detects first information corresponding to the second user equipment in the at least one group of transmission resource subsets;
the group of the transmission resource subsets is divided by the first user equipment according to a set grouping rule, and the grouping rule includes a grouping rule determined according to at least one of identification information of the second user equipment, a service type of the second user equipment, or propagation path loss between the second user equipment and the first user equipment.
5. The method of claim 4, wherein before the second user equipment determines at least one subset of transmission resources based on the transmission resource configuration information, the method further comprises:
and the second user equipment determines the group in which the second user equipment is positioned.
6. The method of claim 5, wherein the second user equipment determining at least one set of transmission resource subsets based on the transmission resource configuration information comprises:
and the second user equipment determines at least one group of transmission resource subsets according to the grouping, wherein the grouping and the at least one group of transmission resource subsets have a mapping relation.
7. The method of claim 6, wherein the mapping of the packet to the at least one subset of transmission resources is determined by the first user equipment or according to a pre-configured rule.
8. The method of claim 4, wherein the at least one subset of transmission resources comprises one or more transmission resources with a set position.
9. The method of claim 8, wherein the mapping relationship between the second user equipment and the one or more transmission resources with set positions is determined by the first user equipment or determined according to a pre-configured rule.
10. A user device comprising a communication interface, a processor, and a memory, wherein:
the memory is used for storing a software program;
the processor is used for calling and executing the software program stored in the memory, and transmitting and receiving data through the communication interface to realize the method as claimed in any one of claims 1 to 9.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/097122 WO2019028841A1 (en) | 2017-08-11 | 2017-08-11 | Terminal communication method and user equipment |
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| CN110036676A CN110036676A (en) | 2019-07-19 |
| CN110036676B true CN110036676B (en) | 2022-04-29 |
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| CN115278834A (en) * | 2021-04-30 | 2022-11-01 | 华为技术有限公司 | Method and communication device for detecting PSCCH |
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| CN110036676A (en) | 2019-07-19 |
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